THIS GUIDE IS DESIGNED TO ASSIST ELEMENTARY AND SECONDARY TEACHERS, SUPERVISORS, AND SCHOOL ADMINISTRATORS IN THE PURCHASE OF SCIENCE AND MATHEMATICS EQUIPMENT. ITEMS ARE LISTED ALPHABETICALLY AND ARE CLASSIFIED AS BASIC, STANDARD, OR ADVANCED. DESCRIPTIONS INCLUDE (1) SCHOOL SUBJECTS IN WHICH THE ITEM IS USED, (2) THE MAJOR USE OF THE EQUIPMENT, AND (3) SPECIFICATIONS. OTHER SECTIONS PROVIDE INFORMATION ABOUT (1) REMODELING OF SCIENCE FACILITIES, (2) SCIENCE COURSE IMPROVEMENT PROJECTS, (3) MOBILE SCIENCE UNITS, (4) IMPROVISED BIOLOGY EQUIPMENT, (5) SEMIMICRO CHEMISTRY EQUIPMENT, (6) EARTH SCIENCE IN THE ELEMENTARY AND SECONDARY SCHOOLS, AND (7) ELECTRICITY AND ELECTRONICS EDUCATION. THIS BOOK WAS PUBLISHED BY GINN AND COMPANY, STATLER OFFICE BUILDING, BOSTON, MASSACHUSETTS, 476 PAGES, $4.60. (AG)